The Roughnecks must rescue a demolition squad trapped in a canyon by flying warrior bugs. Meanwhile, Rico must train a reporter so that he can defend himself in combat.

When the Roughnecks are sent underground to locate the tunnel with the bug army's hatchery, Dizzy suffers from an attack of claustrophobia.

When a transport bug is followed from Pluto to the planet Hydora, the Roughnecks are ordered to determine if it could be the bug home world.